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Class 7 Mathematics: questions and answers on volume

The diagram below represents a cylindrical solid of diameter 56cm. The solid has a circular hole of radius 7cm. The length of the solid is 120cm.
What is the volume of the solid? (Take $pi=22/7$ )
A. 18480 $cm^3$
B. 295680 $cm^3$
C. 314160 $cm^3$
D. 277200 $cm^3$

(6m 28s)

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